FACULTY OF ENGINEERING & TECHNOLOGY
Mr. Dilip Kumar J Saini
Assistant Professor
Computer Science & Engineering
Lecture-22
BCA-302Computer Networks
OUTLINE
APPROACHES TO CONGESTION CONTROL
TRAFFIC THROTTLING
LOAD SHEDDING
APPROACHES TO CONGESTION CONTROL
Timescales of approaches to congestion control
TRAFFIC THROTTLING
(a) A congested network. (b) The portion of the network that is not congested. A virtual circuit from A to B is also shown
TRAFFIC THROTTLING
Explicit congestion notification
LOAD SHEDDING
A choke packet that affects only the source
LOAD SHEDDING
A choke packet that affects each hop it passes through
Multiple Choice Question
MUTIPLE CHOICE QUESTIONS
:Sr no Question Option A Option B OptionC OptionD
1
What is the maximum number of IP addresses that can be assigned to hosts on a local subnet that uses the 255.255.255.224 subnet mask?
14 15 16 30
2
You need to subnet a network into 5 subnets, each with at least 16
hosts. Which classful subnet mask would you use? 255.255.255.192 255.255.255.22
4 255.255.255.240 255.255.25 5.248
3
You have a network that needs 29 subnets while maximizing the number of host addresses available on each subnet. How many bits must you borrow from the host field to provide the correct subnet mask?
2 3 4 5
4
If an Ethernet port on a router were assigned an IP address of 172.16.112.1/25, what would be the valid subnet address of this host?
172.16.112.0 172.16.0.0 172.16.96.0 172.16.255 .0
5
You have an interface on a router with the IP address of
192.168.192.10/29. Including the router interface, how many hosts can have IP addresses on the LAN attached to the router interface?
6 8 30 32
REFERENCES
http://www.engppt.com/2009/12/networking-fourozan-ppt-slides.html
